Perhaps you should try some spelling variations:
va triet » va trien, ve triet, cua triet
hanh lam » thanh lap, hanh kem, hanh va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
xuc van » duc van, luc van, vuc van
hang ca » hang va, nang cao, hang tai
ve cac » va cac, vien cac
y hang » ly hang, ty hang, yu hang
ve cam » ve cham, va cam, ve cai
ca hoi » cau hoi, cua hoi, xa hoi
thiet » thieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y hang ca hoi. hieu ((ve cam) or (ve cac)) xuc van hanh lam ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y hang ca hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh lam ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: te sach y hang ca hoi. hieu ((ve cam) or (ve cac)) xuc van hanh lam ((va triet) or (va thiet))*.